HP-Series 12V 100Ah Lithium Battery for Starting & Cycling by RELiON®. RELiON's RB100-HP is a Group 31 12V, 100Ah deep-cycle lithium-ion battery built for starting and cycling. The RB100-HP has increased peak amps for starting motors, electric start generators and other high-amap-draw devices - plus, it doubles as a house battery, powering peripherals, accessories and more.